In vulvar cancer, lymph node status is a major prognostic factor. Currently, the reference regarding nodal exploration is the groin lymphadenectomy responsible for a significant morbidity. The sentinel node technique in breast cancer has become a standard of care. This technique has been studied for fifteen years in vulvar cancer, on small numbers because of its low incidence. There is not yet consensus about its use in practice. This article is a focus on this technology, its feasibility and the benefits of sentinel node detection applied to vulvar cancer.